The global incidence of cancers of the oral cavity, pharynx and larynx is about 500,000 cases per year with mortality of 270,000 cases per year. Oral cancer, due to its location in an accessible part of the body i.e. mouth, can be detected at an early stage. However, because of lack of symptoms, especially pain, in early stages, medical attention is not sought till the disease is advanced which leads to a poor prognosis. Squamous cell cancer constitutes the most common head and neck malignancy and is related to tobacco and /or alcohol usage. Therefore, it is important for all oral health professionals to equip themselves with the knowledge to detect this disease at the earliest possible stage.